IR2085STRPBFXUMA1

Gate Driver Overview

The IR2085STRPBFXUMA1 is an automotive-grade half-bridge gate driver IC designed for high-speed applications. It integrates a self-oscillating 50% duty cycle oscillator with half-bridge drive capabilities in an 8-SOIC package. The device supports bootstrap operation up to 100V DC and features programmable switching frequencies reaching 500kHz per channel. It provides +/- 1A peak output current, optimized for low charge MOSFETs, with rise and fall times of 40ns and 20ns respectively. Operating voltage ranges from 10V to 15V, with a working temperature range of -40°C to +125°C.

Gate Driver Feature Summary

• Integrates a 50% duty cycle oscillator and half-bridge driver in a single SOIC-8 package to reduce component count.
• Supports programmable switching frequencies up to 500kHz per channel for flexible system design.
• Features adjustable dead time ranging from 50ns to 200ns and pulse width matching within +/- 25ns.
• Includes built-in overcurrent protection, undervoltage lockout, and internal soft-start functions.

Gate Driver Applications

• Half-bridge DC bus converters in 48V distributed power systems
• Automotive grade motor control applications requiring high speed
• Primary side control solutions for isolated power supplies

Gate Driver Procurement Notes

Verify the specific suffix PBFXUMA1 against the manufacturer's official documentation to confirm automotive qualification status and RoHS compliance details. Ensure the ordering part number matches the exact tape and reel specifications required for your assembly process. Cross-reference the datasheet revision history to confirm availability and any potential last-time buy notices associated with this specific Infineon product code.

Gate Driver Selection Notes

Select this component when a compact solution combining oscillation and driving is required for half-bridge topologies. The integrated oscillator simplifies primary-side control by eliminating external timing components. Consider the 100V bootstrap limit and 1A drive strength when sizing external MOSFETs. The SOIC-8 package offers a balance between thermal performance and board space efficiency for industrial and automotive designs.

Gate Driver Part Context

This part belongs to the IR2085 family of high-speed half-bridge drivers. It is functionally similar to the standard IR2085S but includes automotive-specific packaging and qualification markings indicated by the XUMA1 suffix. The series is designed to replace discrete oscillator and driver combinations, offering improved propagation delay matching and reduced electromagnetic interference through controlled slew rates.

Gate Driver Replacement Considerations

The IR2085STRPBF serves as a non-automotive equivalent with identical electrical characteristics but lacks the specific automotive qualification data associated with the PBFXUMA1 variant. Verify that the application does not strictly require AEC-Q100 certification before substituting with non-automotive grades.